acescent/əˈsiːsənt/EtymologyBorrowed from Latin acēscēns, acēscentis, present participle of acēscēre (“to turn sour”), inchoative of acēre (“to be sour”): compare French acescent.acescent means turning sour; readily becoming tart or acid; slightly sour. Lexicurio rates it Sui generis — a strength score of 87 out of 100.acescent is pronounced /əˈsiːsənt/.adjTurning sour; readily becoming tart or acid; slightly sour.“The fluid was a pale yellow , thick , creamy - looking substance , of uniform consistency . It had a disagreeable acescent odour, something resembling that of putrecsent milk.”nounA substance liable to become sour.